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Machine Info

Fields

hardware None
os_version None

Parameters

cpu Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 48 bits physical, 48 bits virtual
CPU(s): 128
On-line CPU(s) list: 0-127
Thread(s) per core: 2
Core(s) per socket: 64
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 23
Model: 49
Model name: AMD EPYC 7702 64-Core Processor
Stepping: 0
Frequency boost: enabled
CPU MHz: 1500.372
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.84
Virtualization: AMD-V
L1d cache: 2 MiB
L1i cache: 2 MiB
L2 cache: 32 MiB
L3 cache: 256 MiB
NUMA node0 CPU(s): 0-127
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2: Mitigation; Full AMD retpoline, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd amd_ppin arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca
memory MemTotal: 263696144 kB
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.32.0.20190909-8
Copyright (C) 2019 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or later.
This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-suse-linux'.
gcc gcc (GCC) 11.0.0 20200721 (experimental) c850a642e1dfd3a15335d86976015c4a5064b5df
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
git_revision c850a642e1dfd3a15335d86976015c4a5064b5df
glibc GNU C Library (GNU libc) stable release version 2.30 (git 0a8262a1b2).
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Configured for x86_64-suse-linux.
Compiled by GNU CC version 9.2.1 20190903 [gcc-9-branch revision 275330].
libc ABIs: UNIQUE IFUNC ABSOLUTE
For bug reporting instructions, please see:
<http://bugs.opensuse.org>.
glibc_location /lib64/libc.so.6
ld GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.32.0.20190909-8
options None
reason None
uname Linux benzen 5.3.6-1-default #1 SMP Sun Oct 13 07:19:36 UTC 2019 (519ea7b) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk.O0_g test results

Run Order Start Time Duration
Current 1595312896000.c850a642e1dfd3a15335d86976015c4a5064b5df 2020-07-21T10:47:29.965954 0:01:33.045861
Previous 1595274390000.87891d5eafe8d1de90b9d9b056eca81c508d1c77 2020-07-20T23:53:25.290558 0:01:32.222703
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:28.935102

Tests Summary

Status Group # # (B)
Performance Regressions 2 12
Performance Improvements 2 6
Added Tests 3 3
Unchanged Tests 317 303
Total Tests 324

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr28071.c 11.00% 10.325 11.461 - 7.20% -
random/pr39326.c 2.24% 2.035 2.080 - 0.66% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c -5.38% 5.257 4.974 - -5.22% -
random/pr69609.c -2.50% 4.982 4.857 - -6.82% -

Added Tests - size
random/empty.c/elf/sections/text
random/empty.C/elf/sections/text
random/pr36439.cpp/elf/sections/text

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp 8.53% 4.414 4.791 - -0.40% -
random/pr28071.c 7.20% 10.691 11.461 - 11.00% -
random/pr36439.cpp 4.26% 6.258 6.524 - 0.80% -
random/pr36291.cpp 2.29% 11.540 11.804 - 0.02% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp 14.76% 495.30 MB 568.41 MB - -0.03% -
random/pr12392.cpp 14.62% 301.95 MB 346.10 MB - -0.00% -
random/empty.C 5.02% 17.59 MB 18.47 MB - 0.34% -
random/pr36439.cpp 4.97% 346.68 MB 363.91 MB - 0.01% -
random/empty.c 3.44% 16.47 MB 17.04 MB - 0.00% -
random/pr29433.cpp 2.09% 1.91 GB 1.95 GB - 0.03% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr29433.cpp/elf 2.11% 1.18 MB 1.21 MB - -0.00% -
random/pr39326.c/elf/sections/text 2.03% 436.45 KB 445.30 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -6.82% 5.212 4.857 - -2.50% -
random/pr26854-2.c -5.22% 5.248 4.974 - -5.38% -
tramp3d -2.66% 14.619 14.230 - -0.38% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -4.35% 302.40 MB 289.24 MB - 0.28% -
random/pr39326.c -3.40% 158.00 MB 152.64 MB - 0.00% -
random/pr36291.cpp -2.22% 508.96 MB 497.67 MB - 0.00% -

Added Tests - size
random/empty.c/elf/sections/text
random/empty.C/elf/sections/text
random/pr36439.cpp/elf/sections/text

Report Time: 0.18s